Edward James Olmos ....  Commander William Adama 
Mary McDonnell ....  Laura Roslin 
James Callis ....  Dr. Gaius Baltar 
Tricia Helfer ....  Number 6 
Jamie Bamber ....  Captain Lee 'Apollo' Adama 
Katee Sackhoff ....  Lieutenant Kara 'Starbuck' Thrace 
Grace Park ....  Lieutenant Sharon 'Boomer' Valerii 
Aaron Douglas ....  Chief Petty Officer Tyrol 
Paul Campbell ....  Billy Keikeya 
Kandyse McClure ....  Dualla 
Connor Widdows ....  Boxey 
Matthew Bennett ....  Aaron Doral 
Michael Eklund ....  Deckhand Prosna 
Alessandro Juliani ....  Lt. Gaeta 

rest of cast listed alphabetically 

Moneca Delain ....  Blonde Woman 
Tim Henry ....  Doctor 
Michael Hogan ....  Colonel Paul Tigh 
Erin Karpluk ....  Boxey's Aunt 
Lymari Nadal ....  Gina 
Alonso Oyarzun ....  Socinus 
Tahmoh Penikett ....  Helo 
Callum Keith Rennie ....  Leoben Conoy 
Ryan Robbins ....  Boxey's Father 
Michael Soltis ....  Chantara's Husband